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Effect of Curcumin on the Gene Expression of Low Density Lipoprotein Receptors 被引量:2
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作者 范春雷 钱颖 +2 位作者 沃兴德 严瑾 高丽萍 《Chinese Journal of Integrated Traditional and Western Medicine》 2005年第3期201-204,共4页
Objective: To investigate the molecular mechanisms and effective target ponits of lipid-lowering drug, Rhizoma Curcumae Longae, and study the effect of curcumin on the expression of low density lipoprotein (LDL) re... Objective: To investigate the molecular mechanisms and effective target ponits of lipid-lowering drug, Rhizoma Curcumae Longae, and study the effect of curcumin on the expression of low density lipoprotein (LDL) receptors in macrophages in mice. Methods. Macrophages in mice were treated with curcumin, which was purified from the ethanolly extraction of Rhizoma Curcumae Longae for 24 h. The LDL receptors expressed in the macrophages were determined by enzyme-linked immunosorbent assay (ELISA) and assay of Dil labeled LDL uptake by flow cytometer. Results: It was found for the first time that 10 μmol/L-50 μmol/L curcumin could obviously up-regulate the expression of LDL receptor in macrophages in mice, and a dose-effect relationship was demonstrated. Conclusion: One of the lipid-lowering mechanisms of traditional Chinese medicine, Rhizoma Curcumae Longae, was completed by the effect of curcumin through the up-regulation of the expression of LDL receptor. 展开更多
关键词 CURCUMIN low density lipoprotein receptor gene expression MACROPHAGE ATHEROSCLEROSIS
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Relationship between the low density lipoprotein receptor gene polymorphism and serum lipid levels in the Guangxi Bai Ku Yao population
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作者 LONG Xing-jiang,YIN Rui-xing,LI Ke-la,LIU Wan-ying, ZHANG Lin,CAO Xiao-li,MIAO Lin,WU Dong-feng,ZENG Huan-yu,HU Xi-jiang (Department of Cardiology,Institute of Cardiovascular Diseases, The First Affiliated Hospital,Guangxi Medical University, Nanning 530021,China) 《岭南心血管病杂志》 2011年第S1期154-155,共2页
Objectives Bai Ku Yao(White-trousers Yaos)is a special branch of Yao minority in China.They are now living in both Lihu and Baxu villages,Nandan County, Guangxi,China.The population size is about 30,000.The special cu... Objectives Bai Ku Yao(White-trousers Yaos)is a special branch of Yao minority in China.They are now living in both Lihu and Baxu villages,Nandan County, Guangxi,China.The population size is about 30,000.The special customs and culture of Bai Ku Yao,including their special clothing,intra-ethnic marriages and alcohol intake are still completely conserved to the present day.In previous epidemiologic studies,we found that the serum lipid levels and the prevalence of hyperlipidaemia were lower in Bai Ku Yao than in Han Chinese from the same region.This ethnic difference in serum lipid profiles is still not well known.We hypothesized that there may be significant differences in some genetic polymorphismsssociation of low density lipoprotein receptor (LDL-R) genepolymorphism and several environmental factors with serum lipid levels in the Guangxi Bai Ku Yao and Han populations.Methods A total of 1024 subjects of Bai Ku Yao and 792 participants of Han Chinese were stud- ied by a stratified randomized cluster sampling.Epidemiological survey was carried out using internationally standardized methods.Information on demographics,socioeconomic status, and lifestyle factors was collected with standardized questionnaires. The height,weight,waist circumference,blood pressure, and serum total cholesterol(TC),triglyceride(TG), high-density lipoprotein cholesterol(HDL-C),low-density lipoprotein cholesterol(LDL-C),apolipoprotein(Apo) A1, and ApoB were measured.Body massindex(BMI,kg/m2) was calculated.Genotyping of the LDL-RAvaⅡwas performed by polymerse chain reaction and restriction fragment length polymorphism combined with gel electrophoresis,and then confirmed by direct sequencing.Results(l)The height,weight,serum TC,HDL-C,LDL-C,ApoAl levels and the ratio of ApoAl to ApoB were lower in Bai Ku Yao than in Han Chinese(P【0.01 for all),whereas the percentage of subjects who consumed alcohol or smoked cigarettes was higher in Bai Ku Yao than in Han Chinese(P【0.01 for each).(2) The frequency of A+ allele in Bai Ku Yao was 34.5%,and the frequencies of A-A-,A-A+ and A+A + genotypes were 42.6%,45.9%and 11.5%;respectively. The frequency of A+ allele in Han Chinese was 19.3%(P【0.001),and the frequencies of A-A-,A-A + and A+A+ genotypes were 64.9%,31.6%and 3.5%(P【0.001);respectively. The frequencies of A-A-,A-A+ and A+A+ genotypes in Bai Ku Yao were significant difference between males and females,between normal TC and high TC subgroup, and between normal LDL-C and high LDL-C subgroup (P【0.05 for all),whereas the frequencies of A- and A+ ? alleles in Han Chinese were significant difference between males and females(P【0.05).(3) Serum LDL-C levels in Bai Ku Yao were significant difference among the A-A-, A-A+ and A+A+ genotypes(P【0.05),the A+ carriers had higher serum LDL-C levels.Serum HDL-C levels in Han Chiese were significant difference among the A-A-,A-A + and A+A+ genotypes(P【0.01),the A+ carriers had higher serum HDL-C levels.(4) After adjusting other factors,the prevalence of LDL-C abnormality was still higher in Han Chiese than in Bai Ku Yao.The prevalence of TC abnormality in Han Chinese was almost twice high as in Bai Ku Yao. The age and diet were common risk factor for TC abnormality. No effect of AvaⅡgenotype or alcohol consumption on the TC abnormality was found,but the combination of geno-type and alcohol consumption can increase the prevalence of TC abnormality[Exp(B) =(1.154)].Age was negatively cor- related with TG level.Conclusions Serum TC and LDL-C levels were lower in Bai Ku Yao than in Han Chinese.There were significant differences in the AvaⅡallele and genotype frequencies between the he A+ carriers in Bai Ku Yao had higher serum LDL-C levels,whereas the A+ carriers in Han had higher serum HDL-C levels.Interactions between alcohol consumption or cigarette smoking and the LDL-R AvaⅡgenotype were also observed.The differences in the serum lipid profiles between the two ethnic groups might partly result from different genotypic frequency of LDL-R AvaⅡpolymorphism or differentgene-enviromental interactions.Bai Ku Yao and Han population,the frequency of A + allele was higher in Bai Ku Yao than in Han.T between the two ethnic groups.Therefore,the aim of the present study was to detect the 展开更多
关键词 LDL Relationship between the low density lipoprotein receptor gene polymorphism and serum lipid levels in the Guangxi Bai Ku Yao population gene
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Detection of Low Density Lipoprotein Receptor Related Protein Gene Polymorphism and Serum Lipid Levels in Renal Transplant Recipients
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作者 Yuxin Wang Qingqin Li +4 位作者 Hequn Zou Yuanshan Lu Qinjun Xu Xiaodao Tang Dai Li 《器官移植内科学杂志》 2008年第4期170-175,共6页
关键词 肾移植术 低密度脂蛋白 聚合酶链反应 临床分析
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Hypercholesterolemia,low density lipoprotein receptor and proprotein convertase subtilisin/kexin-type 9 被引量:7
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作者 Hong-mei Gu Da-wei Zhang 《The Journal of Biomedical Research》 CAS CSCD 2015年第5期356-361,共6页
Atherosclerotic cardiovascular disease is the main cause of mortality and morbidity in the world. Plasma levels of low density lipoprotein cholesterol (LDL-C) are positively correlated with the risk of atheroscleros... Atherosclerotic cardiovascular disease is the main cause of mortality and morbidity in the world. Plasma levels of low density lipoprotein cholesterol (LDL-C) are positively correlated with the risk of atherosclerosis. High plasma LDL concentrations in patients with hypercholesterolemia lead to build-up of LDL in the inner walls of the arteries, which becomes oxidized and promotes the formation of foam cells, consequently initiating atherosclerosis. Plasma LDL is mainly cleared through the LDL receptor (LDLR) pathway. Mutations in the LDLR cause familiar hyperch- olesterolemia and increase the risk of premature coronary heart disease. The expression of LDLR is regulated at the transcriptional level via the sterol regulatory element binding protein 2 (SREBP-2) and at the posttranslational levels mainly through proprotein convertase subtilisin/kexin-type 9 (PCSK9) and inducible degrader of the LDLR (IDOL). In this review, we summarize the latest advances in the studies of PCSK9. 展开更多
关键词 HYPERCHOLESTEROLEMIA low density lipoprotein receptor STATIN ATHEROSCLEROSIS proprotein convertasesubtilisin/kexin -type 9
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Roles of low?density lipoproteinreceptor?related protein 1 in tumors 被引量:5
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作者 Peipei Xing Zhichao Liao +5 位作者 Zhiwu Ren Jun Zhao Fengju Song Guowen Wang Kexin Chen Jilong Yang 《Chinese Journal of Cancer》 SCIE CAS CSCD 2016年第1期4-11,共8页
Low-density lipoprotein receptor-related protein 1(LRP1,also known as CD91),a multifunctional endocytic and cell signaling receptor,is widely expressed on the surface of multiple cell types such as hepatocytes,fibrobl... Low-density lipoprotein receptor-related protein 1(LRP1,also known as CD91),a multifunctional endocytic and cell signaling receptor,is widely expressed on the surface of multiple cell types such as hepatocytes,fibroblasts,neurons,astrocytes,macrophages,smooth muscle cells,and malignant cells.Emerging in vitro and in vivo evidence demonstrates that LRP1 is critically involved in many processes that drive tumorigenesis and tumor progression.For example,LRP1 not only promotes tumor cell migration and invasion by regulating matrix metalloproteinase(MMP)-2and MMP-9 expression and functions but also inhibits cell apoptosis by regulating the insulin receptor,the serine/threonine protein kinase signaling pathway,and the expression of Caspase-3.LRPI-mediated phosphorylation of the extracellular signal-regulated kinase pathway and c-jun N-terminal kinase are also involved in tumor cell proliferation and invasion.In addition,LRP1 has been shown to be down-regulated by microRNA-205 and methylation of LRP1CpG islands.Furthermore,a novel fusion gene,LRP1-SNRNP25,promotes osteosarcoma cell invasion and migration.Only by understanding the mechanisms of these effects can we develop novel diagnostic and therapeutic strategies for cancers mediated by LRP1. 展开更多
关键词 low-density lipoprotein receptor-related PROTEIN 1 Tumorigenesis Invasion migration Proliferation apoptosis Signaling pathway MicroRNA Fusion gene
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Function and Significance of Very Low Density Lipoprotein Receptor Subtype Ⅱ 被引量:1
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作者 田俊 毕昊 +4 位作者 李映红 杨璞 宋义强 王玉 屈伸 《Journal of Huazhong University of Science and Technology(Medical Sciences)》 SCIE CAS 2005年第3期229-233,共5页
To explore the functions of very low density lipoprotein receptor (VLDL-R) subtype II in lipoprotein metabolism and foam cells formation, the recombinant plasmid with the two subtypes cDNA was constructed respectively... To explore the functions of very low density lipoprotein receptor (VLDL-R) subtype II in lipoprotein metabolism and foam cells formation, the recombinant plasmid with the two subtypes cDNA was constructed respectively, the ldl-A7 cell lines were transfected and two cell lines expressing VLDL-R were obtained: one stably expressing the VLDLR with the O-linked sugar region (type I VLDLR) and the other without the O-linked sugar region (type II VLDLR). In the study on binding of VLDLR to their nuclein labeled natural ligands (VLDL and β-VLDL), it was found that surface binding of 125I-VLDL or 125I-β-VLDL of ldl-A7 cells transfected with type I VLDLR recombinant (ldl-A7-VRI) was more higher than that of ldl-A7 cells transfected with type II VLDLR recombinant (ldl-A7-VRII). After being incubated with VLDL for different time, the contents of triglyceride and total cholesterol in cells were mensurated, and the formation of foam cells and accumulation of lipid in cells was observed by oil-red O staining. The results showed that the contents of triglyceride and total cholesterol in ldl-A7-VR I were much higher than those in ldl-A7-VR II, and ldl-A7-VR I could transform into foam cells notably. It was suggested that type I VLDLR binds with relative higher affinity to VLDL and β-VLDL, and internalizes much more lipoprotein into cells. As a result, we can conclude that type I VLDLR plays a more important role in lipoprotein metabolism and foam cells formation than type II VLDLR. 展开更多
关键词 very low density lipoprotein receptor subtype LIGAND BINDING INTERNALIZATION
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Association between Low-density Lipoprotein Receptor-related Protein 5 Polymorphisms and Type 2 Diabetes Mellitus in Han Chinese:a Case-control Study 被引量:4
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作者 YOU Hai Fei ZHAO Jing Zhi +11 位作者 ZHAI Yu Jia YIN Lei PANG Chao LUO Xin Ping ZHANG Ming WANG Jin Jin LI Lin Lin WANG Yan WANG Qian WANG Bing Yuan REN Yong Cheng HU Dong Sheng 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2015年第7期510-517,共8页
Objective To investigate the association between low-density lipoprotein receptor-related protein 5 (LRPS) variants (rs12363572 and rs4930588) and type 2 diabetes mellitus (T2DM) in Han Chinese. Methods A total ... Objective To investigate the association between low-density lipoprotein receptor-related protein 5 (LRPS) variants (rs12363572 and rs4930588) and type 2 diabetes mellitus (T2DM) in Han Chinese. Methods A total of 1842 T2DM cases (507 newly diagnosed cases and 1335 previously diagnosed cases) and 7777 controls were included in this case-control study. PCR-RFLP was conducted to detect the genotype of the two single nucleotide polymorphisms (SNPs). Odds ratios (ORs) and 95% confidence intervals (95% CIs) were calculated to describe the strength of the association by logistic regression. Results In the study subjects, neither rs12363572 nor rs4930588 was significantly associated with T2DM, even after adjusting for relevant covariates. When stratified by body mass index (BMI), the two SNPs were also not associated with T2DM. Among the 3 common haplotypes, only haplotype ~ was associated with reduced risk of T2DM (OR 0.820, 95% CI 0.732-0.919). In addition, rs12363572 was associated with BMI (P〈0.001) and rs4930588 was associated with triglyceride levels (P=0.043) in 507 newly diagnosed T2DM cases but not in healthy controls. Conclusion No LRP5 variant was found to be associated with T2DM in Han Chinese, but haplotype TT was found to be associated with T2DM. 展开更多
关键词 low-density lipoprotein receptor-related protein 5 gene polymorphism Type 2 diabetes mellitus HAPLOTYPE Metabolic characteristics
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Antitumoral activity of low density lipoprotein-aclacinomycin complex in mice bearing H_(22) tumor 被引量:3
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作者 Bi WX Xu SD +1 位作者 Zhang PH Kong F 《World Journal of Gastroenterology》 SCIE CAS CSCD 2000年第1期140-142,共3页
INTRODUCTIONCancer cells,which proliferate rapidly need largeamounts of cholesterol for new membrane synthesis,and high LDL receptor (LDLR) activity.LDL hasbeen proposed as a useful discriminatory vehicle forthe deliv... INTRODUCTIONCancer cells,which proliferate rapidly need largeamounts of cholesterol for new membrane synthesis,and high LDL receptor (LDLR) activity.LDL hasbeen proposed as a useful discriminatory vehicle forthe delivery of cytotoxic drugs to tumor cells.LDL presents many advantages as drug 展开更多
关键词 SUBJECT headings HEPATOMA cells lipoprotein low density aclacinomycin LDL receptor MICE
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Effects of Oxidized Low Density Lipoprotein onthe Expression and Function of ABCA1 in Macrophages 被引量:2
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作者 李映红 毕昊 +3 位作者 吴凡 宗义强 王燕 屈伸 《Journal of Huazhong University of Science and Technology(Medical Sciences)》 SCIE CAS 2005年第2期113-116,共4页
Summary:In the present study, we examined the regulation of the expression and function of ABCA1 by modified LDL (ox-LDL) in vitro. After incubation with apoA-I for 24 h, RAW264.7 cells effluxed 37.65 % cholesterol lo... Summary:In the present study, we examined the regulation of the expression and function of ABCA1 by modified LDL (ox-LDL) in vitro. After incubation with apoA-I for 24 h, RAW264.7 cells effluxed 37.65 % cholesterol loaded by acetyl LDL (ac-LDL), and 9.78 % cholesterol in ox-LDL group. The level of ABCA1 mRNA increased about three times either when cells were incubated with 100 μg /mL ac-LDL or with 100 μg /mL ox-LDL. However, the level of ABCA1 protein rose by 1.57 times in ac-LDL group and 1.26 times in ox-LDL group. These results demonstrated that ox-LDL had different effect on the expression and function of ABCA1, ox-LDL might decrease the cholesterol efflux mediated by ABCA1 through other unknown mechanisms. 展开更多
关键词 ATP binding cassette transporter A1 cholesterol efflux low density lipoprotein gene expression regulation
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基于NOD样受体3炎性小体通路对利拉鲁肽在氧化低密度脂蛋白诱导内皮细胞损伤的作用机制研究
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作者 陈玲 徐锐 +2 位作者 程新春 张占英 徐红 《中国全科医学》 CAS 北大核心 2025年第5期601-606,共6页
背景动脉粥样硬化是世界范围内引起心脑血管疾病最主要的原因,炎症是目前研究热点,其中NOD样受体3(NLRP3)是研究最为深入的炎症小体。胰高糖素样肽1(GLP-1)受体激动剂有抗动脉粥样硬化作用,具体机制尚不明确。目的研究利拉鲁肽通过拮抗... 背景动脉粥样硬化是世界范围内引起心脑血管疾病最主要的原因,炎症是目前研究热点,其中NOD样受体3(NLRP3)是研究最为深入的炎症小体。胰高糖素样肽1(GLP-1)受体激动剂有抗动脉粥样硬化作用,具体机制尚不明确。目的研究利拉鲁肽通过拮抗氧化低密度脂蛋白(ox-LDL)诱导的内皮细胞损伤的作用机制。方法2022-03-25—05-19培养人脐静脉内皮细胞(HUVEC),取HUVEC加空白血清作为对照组,100μg/mL的ox-LDL干预HUVEC 48 h作为模型组,100μg/mL的ox-LDL干预HUVEC 24 h后分别加入100、200、400 nmol/L利拉鲁肽处理24 h作为利拉鲁肽低浓度组、利拉鲁肽中浓度组、利拉鲁肽高浓度组。CCK-8法计算细胞增殖率。通过扫描电镜观察焦亡细胞形态。检测乳酸脱氢酶(LDH)活力。酶联免疫吸附试验(ELISA)检测白介素(IL)-1β、IL-18表达水平。蛋白质免疫印迹试验(Western blot)检测NLRP3、接头蛋白凋亡相关斑点样蛋白(ASC)、天冬氨酸蛋白水解酶1(Caspase-1)、焦亡执行蛋白(GSDMD)、N端结构域的焦亡执行蛋白(N-GSDMD)表达水平。结果模型组、利拉鲁肽低浓度组和利拉鲁肽中浓度组细胞增殖率低于对照组,利拉鲁肽低浓度组、利拉鲁肽中浓度组、利拉鲁肽高浓度组细胞增殖率高于模型组(P<0.05)。细胞扫描电镜结果示模型组细胞焦亡明显,利拉鲁肽低浓度组、利拉鲁肽中浓度组、利拉鲁肽高浓度组细胞焦亡情况明显改善。模型组、利拉鲁肽低浓度组LDH活力高于对照组,利拉鲁肽低浓度组、利拉鲁肽中浓度组、利拉鲁肽高浓度组低于模型组(P<0.05)。模型组、利拉鲁肽低浓度组IL-1β表达水平高于对照组,利拉鲁肽中浓度组、利拉鲁肽高浓度组IL-1β表达水平低于模型组(P<0.05);模型组IL-18表达水平高于对照组,利拉鲁肽低浓度组、利拉鲁肽中浓度组、利拉鲁肽高浓度组IL-18表达水平低于模型组(P<0.05)。模型组NLRP3、ASC、Caspase-1、GSDMD、N-GSDMD表达水平高于对照组,利拉鲁肽低浓度组ASC、Caspase-1表达水平高于对照组,利拉鲁肽中浓度组NLRP3、ASC表达水平低于模型组,利拉鲁肽高浓度组NLRP3、ASC、Caspase-1表达水平低于模型组(P<0.05)。结论利拉鲁肽显著抑制ox-LDL诱导的内皮细胞NLRP3炎性小体活化,并且能够抑制内皮细胞的焦亡,具有抗动脉粥样硬化作用。 展开更多
关键词 动脉粥样硬化 利拉鲁肽 内皮细胞 氧化低密度脂蛋白 NOD样受体3
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基于ox-LDL/LOX-1信号通路探讨脂质代谢紊乱促进肺癌进展中的机制
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作者 吴阳 姚坚 陈金亮 《实用医学杂志》 CAS 北大核心 2024年第1期19-24,31,共7页
目的基于氧化低密度脂蛋白(ox-LDL)/人凝集素样氧化低密度脂蛋白受体1(LOX-1)信号通路探讨脂质代谢紊乱促进肺癌进展的机制。方法收集81个已鉴定的具有成对相邻非癌组织(离肿瘤至少5 cm)的肺腺癌组织,使用免疫组织化学检测LOX-1表达。... 目的基于氧化低密度脂蛋白(ox-LDL)/人凝集素样氧化低密度脂蛋白受体1(LOX-1)信号通路探讨脂质代谢紊乱促进肺癌进展的机制。方法收集81个已鉴定的具有成对相邻非癌组织(离肿瘤至少5 cm)的肺腺癌组织,使用免疫组织化学检测LOX-1表达。肺腺癌细胞系(A549、H1299细胞)中过表达LOX-1。用Transwell测定细胞侵袭能力。用不同浓度oxLDL处理细胞,并检测细胞中LOX-1表达情况。结果在包含原发性人肺癌和匹配的邻近非癌组织中,肿瘤中LOX-1染色比非癌组织样品明显增强(中值H分数99.4 vs.16.2,P<0.001)。高LOX-1表达与低生存显著相关(P<0.001)。与无淋巴结转移的患者相比,发生淋巴结转移患者的癌组织具有更高的LOX-1水平(中值H分数83.2 vs.121.1,P<0.01)。LOX-1过表达显著促进肺癌细胞的侵袭转移细胞数(P<0.01)。此外,LOX-1是ox-LDL诱导的肺癌细胞转移所必需的功能靶点。伊他替尼抑制LOX-1过表达的A549在体外的转移能力。结论LOX-1的表达随着oxLDL水平的升高而增加,并且LOX-1的表达上调促进了肺癌细胞的转移,其作用机制可能与激活Janus激酶/转录因子激活子(JAK1/STAT6)信号通路有关。 展开更多
关键词 氧化低密度脂蛋白 人凝集素样氧化低密度脂蛋白受体1 肺癌 脂质代谢
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利伐沙班对氧化型低密度脂蛋白诱导的人脐静脉内皮细胞功能的影响
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作者 袁媛 刘迟 +4 位作者 李光慧 张晓丹 王利苹 黄仲义 王斌 《中国药业》 CAS 2024年第7期31-36,共6页
目的探讨利伐沙班(RIV)对氧化型低密度脂蛋白(Ox-LDL)诱导的人脐静脉内皮细胞(HUVEC)功能损伤的影响。方法根据干预措施,将实验分为空白对照组(A组,常规培养液),Ox-LDL组(B组,100μg/mL Ox-LDL的培养液),Ox-LDL+RIV125组(C1组,100μg/mL... 目的探讨利伐沙班(RIV)对氧化型低密度脂蛋白(Ox-LDL)诱导的人脐静脉内皮细胞(HUVEC)功能损伤的影响。方法根据干预措施,将实验分为空白对照组(A组,常规培养液),Ox-LDL组(B组,100μg/mL Ox-LDL的培养液),Ox-LDL+RIV125组(C1组,100μg/mL Ox-LDL和125 ng/mL RIV的培养液),Ox-LDL+RIV250组(C2组,100μg/mL Ox-LDL和250 ng/mL RIV的培养液)和Ox-LDL+RIV500组(C3组,100μg/mL Ox-LDL和500 ng/mLRIV的培养液),各组细胞均处理48 h。采用CCK-8法检测各组细胞存活率的变化,采用流式细胞术检测细胞凋亡情况,采用酶联免疫吸附试验(ELISA)检测白细胞介素1β(IL-1β)、白细胞介素6(IL-6)、肿瘤坏死因子-α(TNF-α)水平,采用免疫印迹(Western blot)法检测细胞核因子-κB(NF-κB)和尿激酶型纤溶酶原激活因子受体(uPAR)蛋白表达水平。结果与B组比较,C1组、C2组、C3组细胞存活率显著升高(P<0.05),细胞凋亡率和uPAR表达水平均显著降低(P<0.05);C3组IL-1β,TNF-α,IL-6水平和p-NF-κB p65表达水平显著降低(P<0.05)。结论RIV能显著恢复细胞活力、减少细胞凋亡和由Ox-LDL引起的炎性反应,可能通过NF-κB和uPAR的调节而发挥作用。 展开更多
关键词 利伐沙班 人脐静脉内皮细胞 氧化型低密度脂蛋白 尿激酶型纤溶酶原激活因子受体 核因子-ΚB
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川崎病患儿血清Cav-1、sLR11水平与冠状动脉病变严重程度的相关性分析
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作者 高建波 李娜 +1 位作者 郑伟伟 许丽萍 《中国循证心血管医学杂志》 2024年第8期952-955,共4页
目的 分析川崎病(KD)患儿血清小窝蛋白-1(Cav-1)、可溶性低密度脂蛋白受体11(sLR11)与冠状动脉病变(CAL)严重程度的关系。方法 回顾性分析2021年2月至2022年10月于济源市人民医院儿科收治的153例KD合并CAL患儿的临床资料。依据KD患儿CA... 目的 分析川崎病(KD)患儿血清小窝蛋白-1(Cav-1)、可溶性低密度脂蛋白受体11(sLR11)与冠状动脉病变(CAL)严重程度的关系。方法 回顾性分析2021年2月至2022年10月于济源市人民医院儿科收治的153例KD合并CAL患儿的临床资料。依据KD患儿CAL病变程度分为单支病变组(n=54)、双支病变组(n=68)和多支病变组(n=31)。对比三组患儿临床资料、血清Cav-1、sLR11水平。Logistic多因素回归分析影响KD患儿CAL严重程度的相关因素。受试者工作特征曲线(ROC)分析血清Cav-1、sLR11对KD患儿CAL严重程度的预测价值。结果 单支病变组、双支病变组和多支病变组患儿发热持续时间、C反应蛋白(CRP)、血小板(PLT)计数、红细胞沉降率(ESR)、血清Cav-1、sLR11水平依次升高(P<0.05)。多因素分析结果显示治疗前发热持续时间(OR=1.772,95%CI:1.054~2.982,P=0.031)、血清Cav-1(OR=1.139,95%CI:1.080~1.201,P<0.01)及sLR11(OR=1.251,95%CI:1.105~1.417,P<0.01)均为影响KD患儿CAL严重程度的危险因素。ROC分析显示,血清Cav-1、sLR11两者联合预测KD患儿CAL严重程度的AUC为0.910(95%CI:0.854~0.951,P<0.01)。结论 血清Cav-1、sLR11两者联合对KD患儿CAL严重程度的预测效能较高。 展开更多
关键词 川崎病 冠状动脉病变 小窝蛋白-1 可溶性低密度脂蛋白受体11
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外源性GDF11通过调控LOX-1介导的内质网应激途径改善高血压大鼠血管重构
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作者 戴正东 胡良坤 +1 位作者 万伟 徐丽新 《中国动脉硬化杂志》 CAS 2024年第10期850-856,共7页
[目的]探讨外源性生长分化因子11(GDF11)通过调控凝集素样氧化型低密度脂蛋白受体1(LOX-1)介导的内质网应激途径对高血压大鼠血管重构的影响。[方法]将大鼠随机分为对照组、模型组(AngⅡ诱导的高血压大鼠模型组)、r-GDF11组、Ab-LOX-1组... [目的]探讨外源性生长分化因子11(GDF11)通过调控凝集素样氧化型低密度脂蛋白受体1(LOX-1)介导的内质网应激途径对高血压大鼠血管重构的影响。[方法]将大鼠随机分为对照组、模型组(AngⅡ诱导的高血压大鼠模型组)、r-GDF11组、Ab-LOX-1组和r-GDF11+r-LOX-1组,每组10只。采用动物无创血压仪检测大鼠尾动脉血压变化;HE染色评估主动脉血管形态;Masson染色评估主动脉组织胶原沉积情况;Western blot检测主动脉组织中GDF11、LOX-1及内质网应激相关蛋白表达。[结果]与对照组比较,模型组大鼠血压升高,主动脉组织中膜厚度(MT)、MT/管腔内径(LD)比值增大,LD减小(均P<0.05);主动脉组织胶原纤维容积分数(CVF)值、葡萄糖调节蛋白78(GRP78)和转录激活因子6(ATF6)蛋白表达、磷酸化PKR样内质网调节激酶(p-PERK)/PERK和磷酸化肌醇需求酶1α(p-IRE1α)/IRE1α比值均升高(均P<0.05)。与模型组比较,r-GDF11组和Ab-LOX-1组大鼠血压降低,主动脉组织MT、MT/LD均减小,LD增大(均P<0.05);主动脉组织CVF值、GRP78和ATF6蛋白表达、p-PERK/PERK和p-IRE1α/IRE1α比值均显著降低(均P<0.05)。与r-GDF11组比较,r-GDF11+r-LOX-1组大鼠血压升高,主动脉组织MT、MT/LD增大,LD减小(均P<0.05);主动脉组织CVF值、GRP78和ATF6蛋白表达、p-PERK/PERK和p-IRE1α/IRE1α比值显著升高(均P<0.05)。[结论]外源性GDF11通过抑制LOX-1介导的内质网应激途径改善高血压大鼠血管重构。 展开更多
关键词 外源性生长分化因子11 高血压 血管重构 凝集素样氧化型低密度脂蛋白受体1 内质网应激
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血清S-100B蛋白、可溶性凝集素样氧化低密度脂蛋白受体-1、胶质纤维酸性蛋白检测在新生儿缺血缺氧性脑病病情严重程度中的诊断价值
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作者 耿淑霞 《陕西医学杂志》 CAS 2024年第1期118-121,共4页
目的:探讨血清S-100B蛋白、可溶性凝集素样氧化低密度脂蛋白受体-1(sLOX-1)、胶质纤维酸性蛋白(GFAP)与新生儿缺血缺氧性脑病(HIE)病情严重程度的关系。方法:选择80例HIE患儿作为观察组,另选择90例健康新生儿作为对照组,收集所有患儿一... 目的:探讨血清S-100B蛋白、可溶性凝集素样氧化低密度脂蛋白受体-1(sLOX-1)、胶质纤维酸性蛋白(GFAP)与新生儿缺血缺氧性脑病(HIE)病情严重程度的关系。方法:选择80例HIE患儿作为观察组,另选择90例健康新生儿作为对照组,收集所有患儿一般资料,并检测两组患儿血清S-100B蛋白、sLOX-1、GFAP水平,分析HIE患儿血清S-100B蛋白、sLOX-1、GFAP与病情严重程度的相关性及预后不良的影响因素。结果:对照组血清S-100B蛋白、sLOX-1、GFAP水平低于观察组(均P<0.05)。重度组血清S-100B蛋白、sLOX-1、GFAP水平高于中度组、轻度组和对照组(均P<0.05)。Pearson相关分析显示,疾病严重程度与HIE患儿血清S-100B蛋白、sLOX-1、GFAP水平呈正相关(均P<0.001)。随访预后良好患儿59例,预后不良21例,经多因素Logistic回归分析显示,产程异常、病情重度、S-100B蛋白、sLOX-1、GFAP为影响HIE患儿预后的危险因素(均P<0.05)。结论:HIE患儿病情严重程度和预后与血清S-100B蛋白、sLOX-1、GFAP水平有关,监测其水平变化有利于临床早期完善干预方案改善预后。 展开更多
关键词 S-100B蛋白 可溶性凝集素样氧化低密度脂蛋白受体-1 胶质纤维酸性蛋白 新生儿缺血缺氧性脑病 相关性 预后
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Exploration of the Relationship between Phlegm-Dampness Constitution and Polymorphism of Low Density Lipoprotein Receptor Genes Pvu Ⅱand AvaⅡ 被引量:4
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作者 周菁 罗海明 《Chinese Journal of Integrative Medicine》 SCIE CAS 2007年第3期170-174,共5页
Objective: To explore the polymorphism of low density lipoprotein receptor (LDL-R) genes Pvu Ⅱ end Ave Ⅱ in e population with phlegm-dampness constitution (PDC). Methods: Polymorphism of LDL-R genes at Pvu Ⅱ ... Objective: To explore the polymorphism of low density lipoprotein receptor (LDL-R) genes Pvu Ⅱ end Ave Ⅱ in e population with phlegm-dampness constitution (PDC). Methods: Polymorphism of LDL-R genes at Pvu Ⅱ end Ave Ⅱ of 48 persons with gentle constitution (GC) end 61 with PDC were analyzed with PCR-RELP technique, end their serum contents of lipids end glucose were determined end compared as well. Results: The A+ ellelic end P- ellelic frequency were higher end the P+ ellelic frequency was lower in subjects with PDC then those in subjects with GC, which were 0.3083 vs 0.1771, 0.9098 vs 0.7708 end 0.0902 vs 0.2292, respectively, ell showing significant difference between the two groups (P〈0.05). Comparison of the two groups in serum levels of triglyceride (TG), fasting blood glucose, 2 h postprandial blood glucose, end 2 h postprandial insulin showed that ell the parameters were higher in subjects with PDC then in subjects with GC respectively, showing significant difference (P〈0.05). Conclusion: PDC is related with the P- end A+ ellelic frequency of higher LDL-R genes at Pvu Ⅱ end Ave Ⅱ, therefore, the polymorphism of LDL-R genes could be taken as one of the genetic markers for PDC, end humans with PDC ere more liable to suffer from blood lipids end glucose disorder then those with GC. 展开更多
关键词 phlegm-dampness constitution polymorphism of low density lipoprotein receptor gene
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LRP5基因突变导致骨质疏松症-假性胶质瘤综合征一例报告
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作者 余安琪 王晨秀 +4 位作者 邓颖 黄水金 何文静 霍亚南 林安华 《中华骨质疏松和骨矿盐疾病杂志》 CSCD 北大核心 2024年第2期150-154,共5页
报告一例常染色体隐性遗传发病的骨质疏松症-假性胶质瘤综合征。先证者女性,23岁,父母非近亲结婚,出生后发现双目失明,婴儿期因发现右眼视网膜母细胞瘤行右眼球摘除术,9岁开始反复发生轻微外力骨折,诊断为成骨不全。查体发现脊柱侧凸畸... 报告一例常染色体隐性遗传发病的骨质疏松症-假性胶质瘤综合征。先证者女性,23岁,父母非近亲结婚,出生后发现双目失明,婴儿期因发现右眼视网膜母细胞瘤行右眼球摘除术,9岁开始反复发生轻微外力骨折,诊断为成骨不全。查体发现脊柱侧凸畸形、胸廓畸形、双上肢肘外翻、四肢关节韧带松弛。双能X线吸收检测仪(dual energy X-ray absorptiometry,DXA)骨密度明显低于同龄人,腰椎1-4骨密度Z值-5,左髋骨密度Z值-1.8。X线摄片示全身骨小梁稀疏。Sanger测序显示低密度脂蛋白受体相关蛋白-5(lowdensity lipoprotein receptor-related protein 5,LRP5)基因的6号外显子和23号外显子发生复合杂合突变,导致p.Pro382Leu+p.Cys1611LeufsX33。本文通过文献复习对该病的临床表现和诊疗特点进行讨论及总结,以期帮助临床医生提高对这一疾病的认识。 展开更多
关键词 低密度脂蛋白受体相关蛋白-5 骨质疏松症-假性神经胶质瘤综合征 复合杂合突变
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水泡性口炎病毒对体外血管内皮屏障功能的损伤作用及其机制
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作者 曹宇璇 陈为 +6 位作者 孙成彪 赵娜 王燕 董明鑫 许娜 刘文森 李咏梅 《吉林大学学报(医学版)》 CAS CSCD 北大核心 2024年第5期1275-1285,共11页
目的:探讨水泡性口炎病毒(VSV)对血管内皮(VE)屏障的损伤作用,并阐明其作用机制。方法:采用犬肾细胞对VSV进行扩增,采用小鼠脑血管内皮瘤bEnd. 3细胞检测VSV的半数组织培养感染剂量(TCID_(50)),采用300倍TCID_(50)进行后续实验。将bEnd... 目的:探讨水泡性口炎病毒(VSV)对血管内皮(VE)屏障的损伤作用,并阐明其作用机制。方法:采用犬肾细胞对VSV进行扩增,采用小鼠脑血管内皮瘤bEnd. 3细胞检测VSV的半数组织培养感染剂量(TCID_(50)),采用300倍TCID_(50)进行后续实验。将bEnd. 3细胞分为感染0 h组、感染4 h组、感染8 h组和感染12 h组,进行VSV感染损伤VE屏障实验;将bEnd. 3细胞分为对照组、感染组和纠正组,进行抑制VSV复制与VE屏障恢复实验。将bEnd. 3细胞接种于Transwell小室,构建体外VE屏障模型,采用细胞电压电阻仪检测感染VSV不同时间后各组bEnd. 3细胞中跨上皮电阻(TER),采用异硫氰酸荧光素-葡聚糖渗漏实验检测各组渗透系数,采用免疫荧光染色法观察VSV感染后各组bEnd. 3细胞骨架及黏附连接(AJs)中VE-钙黏蛋白、β-连环蛋白(β-catenin)和磷酸化β-连环蛋白(p-β-catenin)定位变化,采用实时荧光定量PCR (RT-qPCR)法检测各组细胞中Wnt和β-catenin mRNA表达水平,采用Western blotting法检测各组细胞中Wnt、β-catenin和p-β-catenin表达水平。结果:VSV的TCID_(50)为10^(-4.5)·100μL^(-1)。Transwell小室实验检测,与感染0 h比较,其他各组细胞中TER明显降低(P<0.05),渗透系数明显升高(P<0.05)。免疫荧光染色,与对照组比较,感染组bEnd. 3细胞骨架紊乱,细胞间隙增大,AJs线性指数明显降低(P<0.05),β-catenin和p-β-catenin从细胞膜转移至细胞核周围。RT-qPCR法检测,与感染0 h比较,其他各组细胞中Wnt mRNA表达水平明显降低(P<0.05),β-catenin mRNA表达水平差异无统计学意义(P>0.05)。Western blotting法检测,与感染0 h比较,其他各组细胞中Wnt蛋白表达水平明显降低(P<0.05),β-catenin表达水平差异无统计学意义(P>0.05),p-β-catenin表达水平明显升高(P<0.05)。在抑制VSV复制并纠正低密度脂蛋白受体(LDLR)异常后,Transwell小室实验检测,与感染组比较,纠正组bEnd. 3细胞中TER明显升高(P<0.05),渗透系数明显降低(P<0.05)。免疫荧光染色,与感染组比较,纠正组细胞间隙减小,细胞中β-catenin和p-β-catenin核周聚集现象有所改善。RT-qPCR法检测,与感染组比较,纠正组细胞中Wnt mRNA表达水平明显升高(P<0.05)。Western blotting法检测,与感染组比较,纠正组细胞中Wnt蛋白表达水平明显升高(P<0.05),β-catenin表达水平差异无统计学意义(P>0.05),p-β-catenin表达水平明显降低(P<0.05)。结论:VSV感染后可引起LDLR失活,降低Wnt蛋白表达水平,造成β-catenin磷酸化水平升高并发生内化,破坏AJs稳定性,最终导致VE屏障损伤。 展开更多
关键词 水泡性口炎病毒 血管内皮屏障 黏附连接 低密度脂蛋白受体 Wnt/β-连环蛋白信号通路
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绝经后2型糖尿病LRP5基因多态性与骨量异常的研究
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作者 黎娅 李军 +3 位作者 李思源 王曦龄 卢韵秋 李子昕 《中国骨质疏松杂志》 CAS CSCD 北大核心 2024年第2期210-215,共6页
目的分析低密度脂蛋白受体相关蛋白5(low density lipoprotein receptor related protein 5,LRP5)rs556442、rs312778位点基因多态性及突变在绝经后女性2型糖尿病(type 2 diabetes mellitus,T2DM)患者中骨量异常的意义。方法收集2021年... 目的分析低密度脂蛋白受体相关蛋白5(low density lipoprotein receptor related protein 5,LRP5)rs556442、rs312778位点基因多态性及突变在绝经后女性2型糖尿病(type 2 diabetes mellitus,T2DM)患者中骨量异常的意义。方法收集2021年5月至2023年5月新疆石河子地区的142例绝经后女性资料进行回顾性分析,分为正常对照组(A组,n=29)、T2DM组(B组,n=30)、骨量降低组(C组,n=28)、骨量降低+T2DM组(D组,n=55)。收集记录相关基线资料,运用全自动生化测定仪测定受试者血糖、血脂及骨代谢指标。通过双能X线骨密度仪测定骨密度(bone mineral density BMD),LRP5基因位点多态性采用飞行时间质谱法(MALDI-TOF-MS)测定,采用SNPscan技术对上述SNP位点进行基因分型。结果①四组基线资料比较,绝经年限、年龄及腰臀比(waist hip ratio,WHR)比较差异具有统计学意义(P<0.05);②与A组相比,B组的空腹血糖(FPG)、糖化血红蛋白(HbA1c)升高(P<0.05);D组的FPG、HbA1c的血清学水平升高,甘油三酯(TG)血清学水平降低(P<0.05);③rs556442位点:与A组相比,D组基因型分布(AA/AG/GG基因型)有统计学意义(P<0.05);rs312778位点组间基因型(CC/CT/TT基因型)及等位基因分布频率均无统计学意义(P>0.05);④rs556442位点:与AA基因型相比,B、C组AG/GG基因型的股骨颈BMD水平降低;D组AG/GG型的HDL血清学水平降低(P<0.05)。rs312778位点:与CC基因型相比,A组HbA1C、FPG血清学水平较CT/TT基因型低(P<0.05);D组CT/TT基因型的低密度脂蛋白(LDL)血清学水平升高(P<0.05);⑤多元线性回归分析:rs556442位点,TG增加是腰L_(1~4)BMD降低的危险因素(P<0.05);rs312778位点,体质量指数(body mass index,BMI)降低是腰L_(1~4)及股骨颈BMD降低的危险因素,TG增加是腰L_(1~4)BMD降低的危险因素(P<0.05);⑥在rs556442、rs312778位点骨量异常与基因型分布均无统计学意义(P>0.05)。结论新疆石河子地区绝经后T2DM女性患者LRP5基因rs556442、rs312778基因位点的突变可能与骨量降低有关。 展开更多
关键词 低密度脂蛋白受体相关蛋白5 绝经女性 基因突变 骨量异常
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血清KLK6、CCR2、ox-LDL水平与帕金森病的相关性研究
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作者 马晓琳 胡兆婷 +3 位作者 郑伟 崔晓 张真 许谦 《国际检验医学杂志》 CAS 2024年第5期614-617,623,共5页
目的分析血清激肽释放酶6(KLK6)、CC趋化因子受体2(CCR2)、氧化修饰低密度脂蛋白(ox-LDL)与帕金森病的相关性。方法将2020年7月至2022年12月于该院诊治的帕金森病患者150例纳入研究作为患者组,按照Hoehn-Yahr(H-Y)分期进一步分为Ⅰ期27... 目的分析血清激肽释放酶6(KLK6)、CC趋化因子受体2(CCR2)、氧化修饰低密度脂蛋白(ox-LDL)与帕金森病的相关性。方法将2020年7月至2022年12月于该院诊治的帕金森病患者150例纳入研究作为患者组,按照Hoehn-Yahr(H-Y)分期进一步分为Ⅰ期27例、Ⅱ期42例、Ⅲ期47例、Ⅳ期34例。另外,选取同期健康体检者150例作为对照组。采用简易精神状态检查(MMSE)量表评估患者精神障碍情况。比较患者组与对照组及不同H-Y分期帕金森病患者血清KLK6、CCR2、ox-LDL水平。分析血清KLK6、CCR2、ox-LDL对帕金森病的诊断价值。分析血清KLK6、CCR2、ox-LDL与H-Y分期、MMSE评分的相关性。结果患者组血清KLK6、CCR2、ox-LDL水平高于对照组(P<0.05)。受试者工作特征(ROC)曲线分析显示,KLK6、CCR2、ox-LDL诊断帕金森病的曲线下面积(AUC)分别为0.813、0.847、0.826,最佳临界值对应的灵敏度、特异度:KLK6为66.7%、90.0%,CCR2为68.0、91.3%,ox-LDL为59.3%、100.0%。不同H-Y分期患者血清KLK6、CCR2、ox-LDL比较:Ⅰ期<Ⅱ期<Ⅲ期<Ⅳ期;MMSE评分比较:Ⅰ期>Ⅱ期>Ⅲ期>Ⅳ期;两两比较差异均有统计学意义(P<0.05)。血清KLK6、CCR2、ox-LDL水平与H-Y分期均呈正相关(r=0.559、0.716、0.722,P<0.05);血清KLK6、CCR2、ox-LDL水平与MMSE评分均呈负相关(r=-0.276、-0.448、-0.457,P<0.05)。结论血清KLK6、CCR2、ox-LDL对帕金森病患者具有一定的诊断价值,并且与帕金森病患者的病情严重程度和认知功能有关。 展开更多
关键词 帕金森病 激肽释放酶6 CC趋化因子受体2 氧化修饰低密度脂蛋白 相关性 预测价值
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